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COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale -Page 14, Permit No. CO-0043648 <br />Table VI-3 /nlerim EjJluen! Limits, Effective Thru June 30. 1996. for Discharge Points: <br />OOQA Springs forming Arequa Gulch within Arequa Gulch Rock Storage Area; <br />OOSA Non-Spring Seepage from Arequa GuG-h Rock Storage Area (does not include slarmwater), At <br />Discharge Into Diversion Ditch Surrounding the Valley Leaclt Facility; <br />006A Non-Spring Seepage from Arequa Gulch Rock Storage Area, Mixed With Stormwater, At Discharge <br />From Diversion Duch to Arequa Gulch Below the Valley Leach Facility <br />Discharge'Limittuions. . <br />,. <br />Maxunum:,Concentratipns; : . . <br />E,~/luent Patnmeter 3.0-Day.Avg. 7-Day Avg.. Daily.Mtcr.. Rationale.. <br />Aluminum, PD, ug/l (!bs/day) <br />Arsenic, PD, ug/l (lbs/day) <br />Cadmium, PD, ug/! (Ibs/day) <br />Chromium, Hex, Dins, ug/1 (lbs/day) <br />Copper, PD, ug/l (!bs/day) <br />Iron, TR, ug/! ([bs/day) <br />Lead, PD, ug/I (!bs/day) <br />Manganese, TR, ug/l (lbs/day) <br />Mercury, Total, ug/l (Ibs/day) <br />Nickel, PD, ug/l (lbs/day) <br />Silver, PD, ug/[ (!bs/day) <br />Zinc, PD, ug/1 (!bs/day) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />N/A <br />N/A <br />N/A <br />N!A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N!A <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Report (Report) <br />Water Qualiry Standards <br />Water Quality Standards <br />Water Quality Standards <br />Water Quality Standards <br />Water Quality Standards <br />Water Quality Standards <br />Water Quality Standards <br />Water Qualiry Standards <br />Water Quality Standards <br />TSS, mg{! <br />Report (Report) <br />Report (Report) <br />Report (Report} <br />1SS Limit Ano(ies Only To tHschar¢e Point OOSA <br />20 N/A 30 <br />Water Qualiry Standards <br />Water Qualiry Standards <br />Water Qualiry Standards <br />EfJluenr Guidelines <br />WAD Weak Acid Dissociable <br />PD Potentially Dissolved <br />TR Total Recovern6le <br />Diss Dissolved <br />Note. Linutc for discharge point OOSA apply during nm~ period after ar 24 hours hove passed since the last rain event ar <br />since sno~vmelt in any area tributary to this point has ceased. Limits for point 006A apply during any rain or <br />snowmelt events which produce visible runoff in the diversion channel, up until 24 hours after such precipitation <br />events have ceased. <br />